"Once you've done what you had to do, they'll never let you do what you want to do." It's something along those lines. She doesn't want to be a thief anymore.

Yeah, that's true. She had to steal to survive. She could continue to steal if she had to, but I'm leaning on the side of not. If Bruce got his money back and wasn't flat broke (his money going back to Fox, who reroutes it to another account perhaps) Selina wouldn't have to be the bread (and jewellery) winner.